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From: Christoph Hellwig <hch@lst.de>
To: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>,
	Nicolas Pitre <nico@fluxnic.net>,
	linux-mmc@vger.kernel.org, Russell King <linux@armlinux.org.uk>,
	linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org,
	Ben Dooks <ben-linux@fluff.org>,
	linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: [PATCH 14/14] dma-mapping: remove dma_max_pfn
Date: Tue, 12 Feb 2019 08:25:28 +0100
Message-ID: <20190212072528.13167-15-hch@lst.de> (raw)
In-Reply-To: <20190212072528.13167-1-hch@lst.de>

These days the DMA mapping code must bounce buffer for any not supported
address, and if they driver needs to optimize for natively supported
ranged it should use dma_get_required_mask.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/arm/include/asm/dma-mapping.h | 7 -------
 include/linux/dma-mapping.h        | 7 -------
 2 files changed, 14 deletions(-)

diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index 31d3b96f0f4b..496b36b9a7ff 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -89,13 +89,6 @@ static inline dma_addr_t virt_to_dma(struct device *dev, void *addr)
 }
 #endif
 
-/* The ARM override for dma_max_pfn() */
-static inline unsigned long dma_max_pfn(struct device *dev)
-{
-	return dma_to_pfn(dev, *dev->dma_mask);
-}
-#define dma_max_pfn(dev) dma_max_pfn(dev)
-
 #define arch_setup_dma_ops arch_setup_dma_ops
 extern void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
 			       const struct iommu_ops *iommu, bool coherent);
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index f6ded992c183..c6dbc287e466 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -710,13 +710,6 @@ static inline int dma_set_seg_boundary(struct device *dev, unsigned long mask)
 	return -EIO;
 }
 
-#ifndef dma_max_pfn
-static inline unsigned long dma_max_pfn(struct device *dev)
-{
-	return (*dev->dma_mask >> PAGE_SHIFT) + dev->dma_pfn_offset;
-}
-#endif
-
 static inline int dma_get_cache_alignment(void)
 {
 #ifdef ARCH_DMA_MINALIGN
-- 
2.20.1


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Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-12  7:25 remove block layer bounce buffering for MMC v2 Christoph Hellwig
2019-02-12  7:25 ` [PATCH 01/14] scatterlist: add sg_kmap_atomic / sg_kunmap_atomic helpers Christoph Hellwig
2019-02-12  7:25 ` [PATCH 02/14] mmc: remove the unused use_blk_mq field from struct mmc_host Christoph Hellwig
2019-02-12  7:25 ` [PATCH 03/14] mmc: add a need_kmap flag to " Christoph Hellwig
2019-02-12  7:25 ` [PATCH 04/14] mmc: davinci: handle highmem pages Christoph Hellwig
2019-02-12  7:25 ` [PATCH 05/14] mmc: moxart: " Christoph Hellwig
2019-02-12  7:25 ` [PATCH 06/14] mmc: omap: " Christoph Hellwig
2019-02-12 18:39   ` Tony Lindgren
2019-02-12  7:25 ` [PATCH 07/14] mmc: omap: handle chained sglists Christoph Hellwig
2019-02-12  7:25 ` [PATCH 08/14] mmc: s3cmci: handle highmem pages Christoph Hellwig
2019-02-12  7:25 ` [PATCH 09/14] mmc: s3cmci: handle chained sglists Christoph Hellwig
2019-02-12  7:25 ` [PATCH 10/14] mmc: mvsdio: handle highmem pages Christoph Hellwig
2019-02-12  7:25 ` [PATCH 11/14] mmc: sh_mmcif: " Christoph Hellwig
2019-02-12  7:25 ` [PATCH 12/14] mmc: sh_mmcif: handle chained sglists Christoph Hellwig
2019-02-12  7:25 ` [PATCH 13/14] mmc: core: don't use block layer bounce buffers Christoph Hellwig
2019-02-12  7:25 ` Christoph Hellwig [this message]
2019-02-25 13:54 ` remove block layer bounce buffering for MMC v2 Ulf Hansson
2019-03-08  9:18   ` Christoph Hellwig
2019-03-08  9:43     ` Ulf Hansson

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